Run 01a00b1e · KernelIndex

Primary measurement

21.5µsmean

Rank 1 in its comparison group · source-native comparison · observed 2026-04-06

17.21× reference

Identity

implementationflashinfer_wrapper_d90b98

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 152 · total_kv = 152 · len_indptr = 2 · bf16

comparison keysha256:f92fc7b1b1d21418…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_d90b98/8d35be33-1592-40b4-b558-ee9da90cadef

sha256:325cff95860bf1cf75c2b05…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.015625

max relative error344.96258544921875

resultpassed

Workload

total_q152

total_kv152

len_indptr2

kbf16 [152, 16, 192]

qbf16 [152, 16, 192]

vbf16 [152, 16, 128]

kv_indptrint32 [2]

qo_indptrint32 [2]

definition comparatorsol_execbench_eval

Measurements

latency · mean21.5 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit13.0

frameworkpytorch 2.11.0+cu130

Artifacts

logssha256:78e7078cb6b34029… · text/plain · unavailable

Replications and notes

No attestations yet.

Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.

Add a reproduction or note

Canonical manifest

Show manifest

{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 21493
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:78e7078cb6b34029b3c54573e2621a41c5953e9f5f65b6f20a4330ab56eda92e",
          "digest": "sha256:78e7078cb6b34029b3c54573e2621a41c5953e9f5f65b6f20a4330ab56eda92e"
        }
      },
      "observedAt": "2026-04-06T16:24:04.577Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.015625,
        "maximumRelativeError": 344.96258544921875
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.02149333308140437,
          "speedup_factor": 17.212407296716023,
          "reference_latency_ms": 0.3699520031611125
        },
        "benchmark": "mla_ragged_prefill_causal_h16_qk192_vo128"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:a454222bfcdb77d61ce8a1e2a77c066e37fbbb9b64c103c7f5a981f49d26d349",
      "environmentDigest": "sha256:83c9b6e78d493927f18878d57448d9a0d2221a70840b562455b2665a2897ba19",
      "implementationDigest": "sha256:7ea424535a43467c4a56a0f6102017255639162cb40f5002e92454310a911b5f"
    },
    "metadata": {
      "name": "sol-trace-mla-ragged-prefill-causal-h16-qk192-vo128-8d35be33",
      "title": "flashinfer_wrapper_d90b98 · mla_ragged_prefill_causal_h16_qk192_vo128"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "flashinfer-bench",
        "repository": "https://github.com/flashinfer-ai/flashinfer-bench"
      },
      "correctness": {
        "reference": "definition reference implementation",
        "comparator": "flashinfer_bench_eval"
      },
      "measurement": {
        "timer": "harness_reported",
        "primaryStatistic": "mean"
      },
      "comparability": {
        "family": "flashinfer_bench_trace"
      }
    },
    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA B200",
        "architecture": "unknown"
      },
      "software": {
        "framework": {
          "name": "pytorch",
          "version": "2.11.0+cu130"
        },
        "libraries": {
          "triton": "3.6.0"
        },
        "cudaToolkit": "13.0"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-11-0-cu130-3-6-0-13-0",
      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

Cite this record (permalink, digest, access date)

Report an issue with this run

Published 2026-08-16 · FlashInfer-Bench · Apache-2.0All results for MLA ragged prefill causal h16 qk192 vo128 →JSON

flashinfer / wrapperd90b98